<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 *
 * @version $Id: tbl_addfield.php 10239 2007-04-01 09:51:41Z cybot_tm $
 */

/**
 * Get some core libraries
 */
require_once './libraries/common.inc.php';
require_once './libraries/Table.class.php';

$js_to_run = 'functions.js';
require_once './libraries/header.inc.php';

// Check parameters
PMA_checkParameters(array('db', 'table'));


/**
 * Defines the url to return to in case of error in a sql statement
 */
$err_url = 'tbl_sql.php?' . PMA_generate_common_url($db, $table);

/**
 * The form used to define the field to add has been submitted
 */
$abort = false;
if (isset($submit_num_fields)) {
	if (isset($orig_after_field)) {
		$after_field = $orig_after_field;
	}
	if (isset($orig_field_where)) {
		$field_where = $orig_field_where;
	}
	$num_fields = $orig_num_fields + $added_fields;
	$regenerate = TRUE;
} elseif (isset($do_save_data)) {
	$query = '';

	// Transforms the radio button field_key into 3 arrays
	$field_cnt = count($field_name);
	for ($i = 0; $i < $field_cnt; ++$i) {
		if (isset(${'field_key_' . $i})) {
			if (${'field_key_' . $i} == 'primary_' . $i) {
				$field_primary[] = $i;
			}
			if (${'field_key_' . $i} == 'index_' . $i) {
				$field_index[]   = $i;
			}
			if (${'field_key_' . $i} == 'unique_' . $i) {
				$field_unique[]  = $i;
			}
		} // end if
	} // end for
	// Builds the field creation statement and alters the table

	for ($i = 0; $i < $field_cnt; ++$i) {
		// '0' is also empty for php :-(
		if (empty($field_name[$i]) && $field_name[$i] != '0') {
			continue;
		}

		$query .= PMA_Table::generateFieldSpec($field_name[$i], $field_type[$i], $field_length[$i], $field_attribute[$i], isset($field_collation[$i]) ? $field_collation[$i] : '', $field_null[$i], $field_default[$i], isset($field_default_current_timestamp[$i]), $field_extra[$i], isset($field_comments[$i]) ? $field_comments[$i] : '', $field_primary, $i);

		if ($field_where != 'last') {
			// Only the first field can be added somewhere other than at the end
			if ($i == 0) {
				if ($field_where == 'first') {
					$query .= ' FIRST';
				} else {
					$query .= ' AFTER ' . PMA_backquote(urldecode($after_field));
				}
			} else {
				$query .= ' AFTER ' . PMA_backquote($field_name[$i-1]);
			}
		}
		$query .= ', ADD ';
	} // end for
	$query = preg_replace('@, ADD $@', '', $query);

	// To allow replication, we first select the db to use and then run queries
	// on this db.
	PMA_DBI_select_db($db) or PMA_mysqlDie(PMA_getError(), 'USE ' . PMA_backquotes($db), '', $err_url);
	$sql_query	 = 'ALTER TABLE ' . PMA_backquote($table) . ' ADD ' . $query;
	$error_create = FALSE;
	PMA_DBI_try_query($sql_query) or $error_create = TRUE;

	if ($error_create == false) {

		$sql_query_cpy = $sql_query . ';';

		// Builds the primary keys statements and updates the table
		$primary = '';
		if (isset($field_primary)) {
			$primary_cnt = count($field_primary);
			for ($i = 0; $i < $primary_cnt; $i++) {
				$j	   = $field_primary[$i];
				if (isset($field_name[$j]) && strlen($field_name[$j])) {
					$primary .= PMA_backquote($field_name[$j]) . ', ';
				}
			} // end for
			$primary	 = preg_replace('@, $@', '', $primary);
			if (strlen($primary)) {
				$sql_query	  = 'ALTER TABLE ' . PMA_backquote($table) . ' ADD PRIMARY KEY (' . $primary . ');';
				$result		 = PMA_DBI_query($sql_query);
				$sql_query_cpy  .= "\n" . $sql_query . ';';
			}
		} // end if

		// Builds the indexes statements and updates the table
		$index = '';
		if (isset($field_index)) {
			$index_cnt = count($field_index);
			for ($i = 0; $i < $index_cnt; $i++) {
				$j	 = $field_index[$i];
				if (isset($field_name[$j]) && strlen($field_name[$j])) {
					$index .= PMA_backquote($field_name[$j]) . ', ';
				}
			} // end for
			$index	 = preg_replace('@, $@', '', $index);
			if (strlen($index)) {
				$sql_query	  = 'ALTER TABLE ' . PMA_backquote($table) . ' ADD INDEX (' . $index . ')';
				$result		 = PMA_DBI_query($sql_query);
				$sql_query_cpy  .= "\n" . $sql_query . ';';
			}
		} // end if

		// Builds the uniques statements and updates the table
		$unique = '';
		if (isset($field_unique)) {
			$unique_cnt = count($field_unique);
			for ($i = 0; $i < $unique_cnt; $i++) {
				$j	  = $field_unique[$i];
				if (isset($field_name[$j]) && strlen($field_name[$j])) {
					$unique .= PMA_backquote($field_name[$j]) . ', ';
				}
			} // end for
			$unique = preg_replace('@, $@', '', $unique);
			if (strlen($unique)) {
				$sql_query	  = 'ALTER TABLE ' . PMA_backquote($table) . ' ADD UNIQUE (' . $unique . ')';
				$result		 = PMA_DBI_query($sql_query);
				$sql_query_cpy  .= "\n" . $sql_query . ';';
			}
		} // end if


		// Builds the fulltext statements and updates the table
		$fulltext = '';
		if (isset($field_fulltext)) {
			$fulltext_cnt = count($field_fulltext);
			for ($i = 0; $i < $fulltext_cnt; $i++) {
				$j		= $field_fulltext[$i];
				$fulltext .= PMA_backquote($field_name[$j]) . ', ';
			} // end for
			$fulltext = preg_replace('@, $@', '', $fulltext);
			if (strlen($fulltext)) {
				$sql_query	  = 'ALTER TABLE ' . PMA_backquote($table) . ' ADD FULLTEXT (' . $fulltext . ')';
				$result		 = PMA_DBI_query($sql_query);
				$sql_query_cpy  .= "\n" . $sql_query . ';';
			}
		} // end if

		// garvin: If comments were sent, enable relation stuff
		require_once './libraries/relation.lib.php';
		require_once './libraries/transformations.lib.php';

		$cfgRelation = PMA_getRelationsParam();

		// garvin: Update comment table, if a comment was set.
		if (isset($field_comments) && is_array($field_comments) && $cfgRelation['commwork'] && PMA_MYSQL_INT_VERSION < 40100) {
			foreach ($field_comments AS $fieldindex => $fieldcomment) {
				if (isset($field_name[$fieldindex]) && strlen($field_name[$fieldindex])) {
					PMA_setComment($db, $table, $field_name[$fieldindex], $fieldcomment, '', 'pmadb');
				}
			}
		}

		// garvin: Update comment table for mime types [MIME]
		if (isset($field_mimetype) && is_array($field_mimetype) && $cfgRelation['commwork'] && $cfgRelation['mimework'] && $cfg['BrowseMIME']) {
			foreach ($field_mimetype AS $fieldindex => $mimetype) {
				if (isset($field_name[$fieldindex]) && strlen($field_name[$fieldindex])) {
					PMA_setMIME($db, $table, $field_name[$fieldindex], $mimetype, $field_transformation[$fieldindex], $field_transformation_options[$fieldindex]);
				}
			}
		}

		// Go back to the structure sub-page
		$sql_query = $sql_query_cpy;
		unset($sql_query_cpy);
		$message   = $strTable . ' ' . htmlspecialchars($table) . ' ' . $strHasBeenAltered;
		$active_page = 'tbl_structure.php';
		require './tbl_structure.php';
	} else {
		PMA_mysqlDie('', '', '', $err_url, FALSE);
		// garvin: An error happened while inserting/updating a table definition.
		// to prevent total loss of that data, we embed the form once again.
		// The variable $regenerate will be used to restore data in libraries/tbl_properties.inc.php
		$num_fields = $orig_num_fields;
		if (isset($orig_after_field)) {
			$after_field = $orig_after_field;
		}
		if (isset($orig_field_where)) {
			$field_where = $orig_field_where;
		}
		$regenerate = true;
	}
} // end do alter table

/**
 * Displays the form used to define the new field
 */
if ($abort == FALSE) {
	/**
	 * Gets tables informations
	 */
	require_once './libraries/tbl_common.php';
	require_once './libraries/tbl_info.inc.php';
	/**
	 * Displays top menu links
	 */
	$active_page = 'tbl_structure.php';
	require_once './libraries/tbl_links.inc.php';
	/**
	 * Display the form
	 */
	$action = 'tbl_addfield.php';
	require_once './libraries/tbl_properties.inc.php';

	// Diplays the footer
	echo "\n";
	require_once './libraries/footer.inc.php';
}

?>
